4230792721 has 2 divisors, whose sum is σ = 4230792722. Its totient is φ = 4230792720.

The previous prime is 4230792667. The next prime is 4230792743. The reversal of 4230792721 is 1272970324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4030853121 + 199939600 = 63489^2 + 14140^2 .

It is a cyclic number.

It is not a de Polignac number, because 4230792721 - 2⁷ = 4230792593 is a prime.

It is not a weakly prime, because it can be changed into another prime (4230792751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115396360 + 2115396361.

It is an arithmetic number, because the mean of its divisors is an integer number (2115396361).

Almost surely, 2^4230792721 is an apocalyptic number.

It is an amenable number.

4230792721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4230792721 is an equidigital number, since it uses as much as digits as its factorization.

4230792721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 4230792721 is about 65044.5441293887. The cubic root of 4230792721 is about 1617.3620535202.

The spelling of 4230792721 in words is "four billion, two hundred thirty million, seven hundred ninety-two thousand, seven hundred twenty-one".